Oxyfluorination of expanded graphite: improving the thermal properties of epoxy composites through interfacial interaction

被引：0
作者：
Ye Ji Choi
Kyeong Min Lee
Da Hee Kang
Jeong-In Han
Young-Seak Lee
机构：
[1] Chungnam National University,Department of Chemical Engineering and Applied Chemistry
来源：
Carbon Letters | 2019年 / 29卷
关键词：
Expanded graphite; Oxyfluorination; Epoxy composites; Thermal properties;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
To enhance the thermal properties of epoxy composites, expanded graphite (EG) was oxyfluorinated and embedded into epoxy resin as a reinforcement. The maximum thermal conductivity was obtained for epoxy composites with oxyfluorinated EG, representing a 62% increase compared to that of neat epoxy. Additionally, the glass transition temperature (Tg) and integral procedural decomposition temperature of epoxy composites with oxyfluorinated EG show the increase of 6% (4.4 °C) and 106% (264 °C), respectively, which indicated the improvement in thermal stability. These results can be attributed to the interfacial interaction between epoxy and oxyfluorinated EG, which formed strong interfacial interactions between the epoxy resin and EG due to the presence of oxygen- and fluorine-containing functional groups in oxyfluorinated EG.
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页码：401 / 409
页数：8
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